Add coveralls for frontend code coverage (#176)

* coveralls

* add coverage in travis

* rename npm scripts

* test failure

* fix test

* only run test:coveralls, add coveralls badge

.travis.yml

@@ -26,7 +26,7 @@ script:
   # Frontend tests
   - cd $TRAVIS_BUILD_DIR/frontend
   - npm i
-  - CI=true npm test
+  - npm run test:coveralls
 
   # DSL tests
   - wget http://central.maven.org/maven2/io/swagger/swagger-codegen-cli/2.3.1/swagger-codegen-cli-2.3.1.jar -O /tmp/swagger-codegen-cli.jar

README.md

@@ -1,4 +1,5 @@
 [![Build Status](https://travis-ci.com/kubeflow/pipelines.svg?token=JjfzFsYGxZwkHvXFCpwt&branch=master)](https://travis-ci.com/kubeflow/pipelines)
+[![Coverage Status](https://coveralls.io/repos/github/kubeflow/pipelines/badge.svg)](https://coveralls.io/github/kubeflow/pipelines?branch=yebrahim%2Fcoveralls)
 
 ## Overview of the Kubeflow pipelines service
 

frontend/package.json

@@ -33,7 +33,6 @@
     "apis:pipeline": "java -jar swagger-codegen-cli.jar generate -i ../backend/api/swagger/pipeline.swagger.json -l typescript-fetch -o ./src/apis/pipeline -c ./swagger-config.json",
     "apis:run": "java -jar swagger-codegen-cli.jar generate -i ../backend/api/swagger/run.swagger.json -l typescript-fetch -o ./src/apis/run -c ./swagger-config.json",
     "build": "react-scripts-ts build",
-    "coverage": "npm run test -- --env=jsdom --coverage",
     "docker": "COMMIT_HASH=`git rev-parse HEAD`; docker build -q -t ml-pipelines-frontend:${COMMIT_HASH} --build-arg COMMIT_HASH=${COMMIT_HASH} --build-arg DATE=\"`date -u`\" -f Dockerfile ..",
     "eject": "react-scripts-ts eject",
     "java": "java -version",
@@ -42,6 +41,8 @@
     "postinstall": "cd ./server && npm i && cd ../mock-backend && npm i",
     "start": "react-scripts-ts start",
     "test": "react-scripts-ts test --env=jsdom",
+    "test:coverage": "npm test -- --env=jsdom --coverage",
+    "test:coveralls": "npm run test:coverage && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js",
     "vr-approve": "backstop approve",
     "vr-test": "ts-node -O '{\"module\": \"commonjs\"}' backstop.ts"
   },
@@ -64,6 +65,7 @@
     "@types/react-test-renderer": "^16.0.2",
     "@types/react-virtualized": "^9.18.7",
     "backstopjs": "^3.5.16",
+    "coveralls": "^3.0.2",
     "enzyme": "^3.6.0",
     "enzyme-adapter-react-16": "^1.5.0",
     "enzyme-to-json": "^3.3.4",